patrick reed let the cat out of the bag on the final day of the masters at augusta national , also revealing he would compete in the bmw pga championship at wentworth the week before .
rory mcilroy managed to persuade some of golf 's biggest stars to take part in the dubai duty free irish open .
but the addition of kaymer and donald means the tournament will feature five players who have been world number one - mcilroy , kaymer , ernie els and lee westwood - and eight major champions in mcilroy , els , kaymer , darren clarke , padraig harrington , graeme mcdowell , paul lawrie and jose maria olazabal .